NEC Display Solutions of America, Inc.
NP41/61/62 Installation Guide
Ceiling Mounted and Desktop Rev 1.1
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www.necdisplay.com
NP41/61/62 Page 1 of 6
Contents
Product Description, Lens Specs, Notes and Formulas Pg 1
Diagrams & Distance Charts
Pg 2
Cabinet Dimensions
Pg 3-4
Ceiling Mount Dimensions
Pg 5
Input Panel and Control Codes
Pg 6
Product Description
Type: .55 DDR DMD™ projector Dimensions: 9.7”(W) x 3.9”(H) x 7.1”(D)
Weight: NP41/NP61: 3.5 lbs
NP62: 3.7 lbs
Resolution: 1024 x 768 Brightness: NP41: 2300 Lumens
Fan Noise: 37 dB / 32 dB @ 1 meter NP61: 3000 Lumens
NP62: 3000 Lumens
Power Consumption: NP41: 265W (max) BTU’s: NP41: 900 BTU/hour
NP61: 285W (max) NP61: 970 BTU/hour
NP62: 300W (max) NP62: 1020 BTU/hour
Lens Specifications
Throw Ratio: 1.8 – 2.2 (for 100” diagonal) Focal Length: 20.4 –24.5mm
Offset Angle: 12.3° - 14.8° (for 100” diagonal) F/#: 2.2 – 2.34
Screen Sizes: 30” - 300” diagonal (4:3) Manual Zoom/Power Focus (w/autofocus)
Notes
For screen sizes not indicated on the projection tables, use the formulas below.
If the figures on the tables do not match the results of formulas, use the figures in the table.
All calculations are based on a 4:3 aspect ratio.
Distances are in inches, for millimeters multiply by 25.4.
Distances may vary 5%.
Formulas
The Projection Formulas use the image width for calculation. For proper projection placement, determine the image width
for the desired screen size. Use the Screen Formulas below to calculate all screen dimensions. Plug in the width for “W” in
the Projection Formulas.
Refer to the diagrams and charts for popular screen sizes on page 2:
Definitions: 4:3 Screen Formulas:
W = Image Width W = H x 4/3
H = Image Height (size) H = W x 3/4
B = Vertical distance between lens center and screen center Screen Diagonal = W x 5/4
C = Throw distance
D = Vertical distance between lens center and screen top
(screen bottom for desktop application)
Projection Formulas:
B = 0.481W
C (wide) = 1.830W –0. 600
C (tele) = 2.203W – 0.800
D = 0.115W
α (wide) = tan¯¹ (B/C(wide))
α (tele) = tan¯¹ (B/C(tele))
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